C / C++ / MFC

4-Sep-03 9:18

Hi,

I can access the doc from the view this way:
CGeneratorDoc * pDoc = GetDocument();

How do I access the view from the doc?

Larry J. Siddens4-Sep-03 9:28

4-Sep-03 9:28

One quick and dirty way is to create a dummy project with the view to create as CEditView. This in effect creates a notepad like application. You can then look at the Doc to see how it is done. I never remember exactly how, but this is how I go find out. Also, there is a way to get the view (if it is a SDI and you will not be attaching anymore). Look in the MSDN for artical Q108587.

Good Luck

Larry J. Siddens
Cornerstone Communications

TAME THE DOCUMENT MONSTER
www.unifier.biz

David Crow4-Sep-03 9:38

David Crow

4-Sep-03 9:38

Use GetFirstViewPosition()/GetNextView().

Binayak4-Sep-03 9:55

4-Sep-03 9:55

I'm still getting errors.
This is SDI application and I have two FormViews. I am trying to access functions of the first view class from the document.

I'm doing the following in the document class:

POSITION pos = GetFirstViewPosition();
CView* pFirstView = GetNextView( pos );
(CMyView *)pFirstView-> Function();

But, I'm getting errors which points to the declaration of the GetDocument() in the view class as following:

c:\rulegenerator\generator.v.13.0\generator.v.5.0\generatorview.h(34) : error C2143: syntax error : missing ';' before '*'
c:\rulegenerator\generator.v.13.0\generator.v.5.0\generatorview.h(34) : error C2501: 'CGeneratorDoc' : missing storage-class or type specifiers
c:\rulegenerator\generator.v.13.0\generator.v.5.0\generatorview.h(34) : error C2501: 'GetDocument' : missing storage-class or type specifiers
Generator.cpp
.......

Please help

Larry J. Siddens4-Sep-03 10:03

4-Sep-03 10:03

Which one of these lines is it on? It is complaining about something in the view.h. Make sure that the doc.h file is before the view.h in the #include list.

Larry J. Siddens
Cornerstone Communications

TAME THE DOCUMENT MONSTER
www.unifier.biz

Binayak4-Sep-03 10:30

4-Sep-03 10:30

even after casting the view to my view class, i can't access view class functions.

POSITION pos = GetFirstViewPosition();
CView* pFirstView = GetNextView( pos );
(CGeneratorView *)pFirstView-> OnPopupRemove();

error:
C:\RuleGenerator\Generator.V.14\Generator.v.5.0\GeneratorDoc.cpp(633) : error C2039: 'OnPopupRemove' : is not a member of 'CView'
c:\program files\microsoft visual studio\vc98\mfc\include\afxwin.h(3542) : see declaration of 'CView'

Larry J. Siddens4-Sep-03 10:34

4-Sep-03 10:34

Yeah, it isn't. Included the header for your view. Make sure it is after the doc.h. That should solve your problem.

Larry

Larry J. Siddens
Cornerstone Communications

TAME THE DOCUMENT MONSTER
www.unifier.biz

Binayak4-Sep-03 10:36

4-Sep-03 10:36

i have included view header after the doc header, still the casting is not working.

Larry J. Siddens4-Sep-03 10:40

4-Sep-03 10:40

Try this:

POSITION Pos = GetFirstViewPosition();
ASSERT( Pos ); // Check to see if it returns a valid value.
CGeneratorView* pView = (CGeneratorView*)GetNextView( Pos );
pVeiw->OnPopupRemove();

or:
POSITION Pos = GetFirstViewPosition();
ASSERT( Pos );
CGeneratorView* pView = reinterpret_cast< CGeneratorView* >( GetNextView( Pos ));
pView->OnPopupRemove();

The dynamic_cast is best, you need to enable the RTTI in you build options to use this. It is better checking than the reinterpret_cast which does nothing.

Now, This is assuming that OnPopupRemove is a public method.

Larry

Larry J. Siddens
Cornerstone Communications

TAME THE DOCUMENT MONSTER
www.unifier.biz

Binayak4-Sep-03 10:50

4-Sep-03 10:50

cool..that worked.
Thanks a LOT Larry!!

Larry J. Siddens4-Sep-03 10:52

4-Sep-03 10:52

No Problimo! Cool | :cool:

Glad I could help.

Larry J. Siddens
Cornerstone Communications

TAME THE DOCUMENT MONSTER
www.unifier.biz

David Crow5-Sep-03 3:46

David Crow

5-Sep-03 3:46

CGeneratorView *pFirstView = (CGeneratorView *) GetNextView(pos);<br />
pFirstView->OnPopupRemove();